A computer virus is a computer program that can duplicate or copy itself and spreads by inserting copies of itself into other programs or documents. Computer viruses can be analogous to a biological virus that spreads by inserting itself into living cells. Computer viruses can be destructive (for example by destroying the data on the document), make computer users get annoyed, or no effect at all.
 Effects of Computer Virus Computer viruses generally can damage computers and software can not directly damage the computer hardware but can lead to damage in a way that forced the program to load over process to a specific device. Negative effects of computer viruses is to multiply themselves, which makes computer resources (such as memory usage) to be reduced significantly. Nearly 95% of virus-based computer operating system Windows. The rest attacked the GNU / Linux, Mac, FreeBSD, OS / 2 IBM, and Sun Operating System. Virulent viruses that will damage the hardware. Kind of Computer Virus A computer virus is a general term to describe any kind of attack against computers. according to how it works, computer viruses can be grouped as follows: 1. Worm » Copy controls on the hard drive itself. This makes computer resources (hard drive into it's full of worms. 2. Trojan » Taking the data on an infected computer and sends it to the trojan maker itself. 3. Backdoor » Similar to the trojan. However, Backdoor usually resembles the files just fine.Example game. 4. Spyware » Virus that monitors the infected computer. 5. Rogue » A program that mimics the antivirus program and displays antiviral activity as normal,and giving false warnings about the virus. The goal is to let users buy and activate the fake antivirus program and make money for the rogue virus makers. Also rogue can open security holes in computers in order to bring in other viruses. 6. Rootkit » A virus that works like an ordinary computer system works only. 7. Polymorphic Viruses » Viruses that likes to change so that can not be detected. 8. Metamorphic Viruses » A virus that turns its own encoding to make it more difficult to detect. 9. Mobile Viruses » A virus that runs on mobile phones, and can cause various effects ranging from cell phones damage, steal data in mobile phones, to make calls discreetly and spent toll of cell phone users. Prevention of Virus Virus attacks can be prevented or overcome by using antivirus software. This type of software can also detect and remove computer viruses. Computer viruses can be removed with a database (database / Signature-based detection), heuristics, or ratings of the program itself (Quantum).

A hacker is a person who is proficient with computers and/or programming to an elite level where they know all of the in's and out's of a system. There is NO illegality involved with being a hacker. A cracker is a hacker who uses their proficiency for personal gains outside of the law. EX: stealing data, changing bank accounts, distributing viruses etc. What the hacker does with their knowledge of systems within the definition of the law is what defines them as a hacker vs a cracker. It's then safe to say that all crackers are hackers, but not all hackers are crackers. This is an important distinction. The term cracker and hacker are used interchangeably (albeit incorrectly) largely due to the ignorance of the general populace, especially the media.

wkwkwkwk =))
by:

erlyta cahyaning astri .....

(teacher and me ;) )

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (often called TCP/IP, although not all protocols use TCP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support email.

Research into packet switching started in the early 1960s and packet switched networks such as ARPANET, Mark I at NPL in the UK,^[6]CYCLADES,^[7][8] Merit Network,^[9] Tymnet, and Telenet, were developed in the late 1960s and early 1970s using a variety of protocols. The ARPANET in particular led to the development of protocols for internetworking, where multiple separate networks could be joined together into a network of networks.

The first two nodes of what would become the ARPANET were interconnected between Leonard Kleinrock's Network Measurement Center at theUCLA's School of Engineering and Applied Science and Douglas Engelbart's NLS system at SRI International (SRI) in Menlo Park, California, on 29 October 1969.^[10] The third site on the ARPANET was the Culler-Fried Interactive Mathematics center at the University of California at Santa Barbara, and the fourth was the University of Utah Graphics Department. In an early sign of future growth, there were already fifteen sites connected to the young ARPANET by the end of 1971.^[11][12] These early years were documented in the 1972 film Computer Networks: The Heralds of Resource Sharing.

halo Bali... kalo nyebut namanya itu pastilahnya orang orang berfikir tentang pantainya atau budayanya bahkan sesajinya, Iya emangsih Bali identik dengan itu semua :D

Bali kali ini masi di beri kesempatan dong buat kumpul dan have fun sama temen2 semuaaa di BALI...

awalnya sempet ragu bisa gak aku ke Bali naik bis lama dan beberapa hari.bayangkan!!!!
udah dari jaman dulu paling anti sama yg namanya bis, pasti kalau gak pusing, mual, dan masih banyak lagi..:D

alhamdulillah perjalanan awal SUKSES eh tapi yaaaa dihari kedua pas itu anu perutku berasa kayak dibom, gilaak sakitnya minta ampun, udah kepala pusing pokoknya campur aduk...udah feeling dari awal gak mungkin aku bisa baik baik aja dari awal sampai akhir perjalanan di Bali..
bukannya kepengen sakit jugasih .

So, di bis juga seperti biasa kerjaan dan hiburanku cuman foto dan ndengerin musik ajaaa..soalnya bis1 itu gak asik, eh bukan gak asik lebih tepatnya apayaa...hampir semuanya pendiem dan saat itu suaraku abis gara2 batuk jadi gak bisa cerewet kayak biasanya yaudaaah deh hening gitu intinya =)) dan tidur mulu.......

oh iyaa, setelah wisata kesana kemari..trus belanja disana disini..

akhirnya pulang juga habis dari bedugul.dan yaaak kalian tau :) hal yg tdk di inginkan terjadi . mual banget muntah dan seperti itulah.. keadaan bener2 errrrrrrrrrrr-_- untung banget pas balik.masih mendinglah yaaaa

ya Allaah.... banyak suka dukalah pokoknya tapi gak bisa dibo.ongin di Bali sama temen2 HAPPY BANGET

masih banyak foto ratusan bahkan ribuan itu sekilas aja sih =))

hei halo.. udah mau minggu aja ya, akhirnyaa kita semua liburan. H-3 tapi aku belum siap siap sama sekali :D asiik yaaa pasti nanti. di pikiran udah mau bawa ini bawa itu semoga lancar! minta doanya semoga bisa hmmmm berangkat dan pulang dengan selamat tanpa halangan apapun! AMIN :$

Akhirnya jaket kelas jadi jugaa. mayan sih.... tapi tapi itu besar bangeeeet -_- asli tak pakek kayak tenggelem sendiri.hahaha tapi ya gak papa kalik yaaaaa  :D RISE? YES! BELIEVE? YES!